Preliminary Data Sheet

TDA21201

Page 1

Apr-29, 2002

Integrated Switch

(MOSFET Driver and MOSFETs)

Type

Package

Marking

Ordering Code

TDA21201-P7

TO-220-7-3

21201P7

Q67042-S4100

TDA21201-S7

TO-220-7-230 21201S7

Q67042-S4101

TDA21201-B7

TO-263-7-2

21201B7

Q67042-S4099

Pin Configuration and Function

Pin number

Pin name

Pin description

1,2,3

GND

Ground

4/tab

Output voltage from common node of the MOSFETs

5

IN

Input signal from PWM controller

6,7

Supply voltage to MOSFETs and Driver IC

General Description

The Integrated Switch TDA21201 incorporates an intelligent MOSFET driver and two

Power MOSFETs in a single package to form a fully integrated and optimized power

stage of a DC/DC synchronous buck converter including the bootstrap components

for the high-side MOSFET.

The Power MOSFETs are optimized for lowest static and dynamic losses for a 12 V

to sub-3.5 V conversion and can handle up to 30 A output current. The TDA21201 is

manufactured in Infineon´s state-of-the-art multi-chip assembly using a low-Rth 7-Pin

1

7

P-TO263-7-2

P-TO220-7-3

Features

• Replaces with one part only the semiconductors of a DC/DC

power stage for a 12 V

à 1 ... 3.3 V conversion:

FET driver + High side FET + Low side FET

• Raises the efficiency by reducing static and dynamic losses

beyond 85 % due to optimized MOSFETs and Driver

• Reduces overall part count and board space consumption

• Simplifies and shortens the circuit design and the layout

• Eliminates the need for external bootstrap components

• Provides simplest overall output current scalability

• Protects the Driver and the MOSFETs against over-

temperature and shoot-through problems Vcc

à Gnd

• Achieves the lowest thermal resistance Rthjc and Rthja

• Uses the well-known, easy-to-assemble and robust

standard TO-220 and TO-263 (D²Pak) package

• Requires no separate supply voltage to operate except 12 V

• Three state input to enable a shut down mode to turn off

both MOSFETs

• Compatible with standard 2-, 3-, 4-, 6-phase PWM controller

ICs

•

Ideal for compact, highly-efficient, multi-phase voltage

regulators on motherboards and VRMs

P-TO220-7-230